how do i know the difference between an original oil lamp and a reproduction?

i recently became interested in oil lamps, the problem is how do i know the difference from an original and a reproduction?

the power cable is usually the first give away

Tara Baden Original Butterfly Oil Painting Modern Fine Art Surreal City Lights $60.00

RARE Listed Artist Alfred F W Hayward (1856-1939) Original Pansies Oil Painting $2,500.00

Eagle with Babies by A Rowland; Original Oil $350.00

Landscape, original 5×7″ oil painting $4.80

LASCELLES-Rock Oil UK Original 2LP $34.99

Landscape, original 5×7″ oil painting $10.50

Original Art- Acadia National Park in MAINE 8 x 10″ oil on canvas $125.00

1992 VALVOLINE MOTOR OIL ORIGINAL AD OWEN SNYDER INDY $5.99

Tiger & Cub by Renald; Original Oil $450.00

Original Oil painting art”male nude”on canvas $256.00

natural original MOROCCAN OIL restorative hair mask argan 16.9oz500 ml full size $22.99

1986 VALVOLINE TURBO V OIL ORIGINAL VINTAGE AD T BIRD $5.99

Rare Original NOS Union 76 Racing Oil Can Laguna Seca Raceway Can Am Formula One $16.93

Original Oil painting art”male nude”on canvas $168.00

Original Still Life Floral Oil Painting Canvas Camellia $139.99

Original Oil painting art”male girl”on canvas $369.00

ORIGINAL OIL PAINTING from the walls of the COCOANUT GROVE AMBASSADOR HOTEL LA! $29.99

French Dolls House Original Miniature Oil Painting – Gonzales $15.72

ORIGINAL ART modern ABSTRACT oil PAINTING landscape $150.00

ORIGINAL ART modern ABSTRACT oil PAINTING *BRIGHT* Colorful $175.00

ORIGINAL Gothic ART modern ABSTRACT oil PAINTING Two crows RED Raven $160.00

ORIGINAL ART modern ABSTRACT oil PAINTING landscape CANVAS $75.00

ORIGINAL fine ART modern ABSTRACT oil PAINTING canvas * STARRY NIGHT IN ISTANBUL $150.00

JEAN CARZOU Signed 1945 Original Oil – LISTED $15,000.00

French Dolls House Original Miniature Oil Painting – Renoir $15.72

LARGE ORIGINAL FINE ART ABSTRACT MODERN OIL PAINTING WALL DECOR Eugenia Abramson $169.00

Original Oil Painting of Hang Gliding hang glider $59.00

SEXY LADY FEMALE RED ORIGINAL OIL PAINTING NO RESERVE $31.58

Beautiful Landscape Oil Painting Canvas, SIGNED R.Yates 24×18 Painting! Original $50.00

PALMBEACH UMBRELLA ORIGINAL OIL PAINTING CANVAS GIFT $31.58

Original Modern Art Deco handmade Tree Oil Paintings B133 NY $49.99

DISCO DANCING ABSTRACT ORIGINAL OIL PAINTING NR GIFT $31.52

ABSTRACT FLAME SPLASH ORIGINAL OIL PAINTING GIFT SALE $31.58

Original Modern Abstract oil Painting $0.01

ABSTRACT SEXY LADY ORIGINAL OIL PAINTING NO RESERVE $31.58

PUMPKIN Barn Window OIL Original Painting JMW art John Williams Impressionism $275.00

Original Modern Art Oil Painting Canvas wall decorate $0.01

A IMAGERY FACE ORIGINAL OIL PAINTING CANVAS ART GIFT $31.58

French Dolls House Original Miniature Oil Painting – Morisot $15.72

Moroccan Oil Original Moroccanoil Hair Treatment 100ml/3.4oz *with Pump* $11.99

Moroccan Oil Original Moroccanoil Hair Treatment 100ml/3.4oz *with Pump* $11.99

Moroccan Oil Original Moroccanoil Hair Treatment 100ml/3.4oz *with Pump* $42.60

Original Scenic Oil Painting Signed Early Work by Philip Cheaney $120.00

Original TEXACO AIRCRAFT ENGINE OIL Porcelain Sign $275.00

Original Scenic Oil Painting Signed Early Work by Philip Cheaney Forest Brook $120.00

Moroccan Oil Original Moroccanoil Hair Treatment 100ml/3.4oz *with Pump* $41.52

VINTAGE DRESSEL LANTERN RAILROAD LIGHT ARLINGTON NJ ORIGINAL OIL LAMP INSERT $350.00

MODERN BLACK LADIES ORIGINAL OIL PAINTING NR GIFT SALE $31.52

HARVEST TIME ORIGINAL OIL PAINTING CANVAS XMASS GIFT $31.58

Huge Modern Abstract Oil Painting Canvas Contemporary Art Original Handmade P176 $99.98

Toy Clown Baseball Original Oil Painting by Joni DiPirro 10×8 $285.00

BULL ELK CLOCK, ELK, OIL PAINTING, TREE STUMP WILDLIFE ART Original Corpany $159.00

AMPRO A 8-8MM PROJECTOR MINT CONDITION WITH CASE AND ORIGINAL BOOK AND OIL 1946 $40.00

Original Signed Oil Painting Winter Snow Scene Bridge Farm Gold Frame $38.99

E-005 Original Oil on Canvas Jazz Portrait Painting by HAJNOS $34.90

West Bend 82306X Stir Crazy 6-Quart Popcorn Popper $53.99 You’ve rented a classic family movie, something along the lines of “Beauty and the Beast” or “Mary Poppins”, and the whole gang is snuggled on the couch. What would make this picture truly complete? Popcorn of course! You can have 6 quarts of crunchy, buttery kernels ready to go in no time with this popper….

Wabash Valley Farms 25008 Whirley-Pop Stovetop Popcorn Popper $16.99 There’s more to going to the movies than seeing the movie itself – it’s the popcorn! Now, with the Whirley Pop Popcorn Maker, you can make fluffy, delicious popcorn just like you get at the theater. The stay-cool hardwood handle turns the stainless steel paddle inside, preventing scorching and burning, and making certain every kernel pops up like it should. The steam vents on top allow moisture to…

Oster 4961 Ice Blade $0.75 2 Piece, Blender Accessory, Includes: 1 Blade & 1 Sealing Ring, Refresh & Revive Your Oster Blender, Compatible With Most Oster 5 & 6 Cup Glass Or Plastic Jars, Stainless Steel Ice Crusher Blade For Perfectly Crushed Ice Every Time….

Diesel & Dust $3.98 Few would claim that Midnight Oil’s Peter Garrett is the world’s greatest rock vocalist, but he clearly means what he sings. On Diesel and Dust, Garrett and company serve up a collection of solid pop-rock songs that follow the groundwork laid by their early albums. Intrinsic to their sound is a guitars-bass-drums attack spiced occasionally with horns and keyboards and capped with Garrett’s throaty…

There Will Be Blood $12.24 This album marks Radiohead guitarist Jonny Greenwood’s first high-profile soundtrack–and one that’s also easily among the most striking offerings of 2007. Music is particularly important for director Paul Thomas Anderson (remember Magnolia and Punch-Drunk Love?) and here, his choice of Greenwood is a gamble that more than paid off. The score is extremely string-heavy, and tension (of which there’…

Oil & Gold $15.99 Digitally remastered and expanded two CD edition of this 1985 album from the British Post-Punk featuring by former XTC keyboardist Barry Andrews and former Gang Of Four bassist Dave Allen. This enhanced edition comes with a newly remastered bonus disc of b-sides, some never before released on CD, as well as a enhanced booklet with new notes. Lemon. 2011….

Ilsa – Harem Keeper of the Oil Sheiks [VHS] $14.98 Despite the fact that Ilsa was killed at the conclusion of her notorious debut film, Ilsa, She Wolf of the SS, she returns (seemingly unaged) decades later as the strutting headmistress of a sadistic charm school for a power-mad sheik’s harem of sex slaves. She masterminds a conspiracy to turn her trainees into veritable sex bombs–they explode upon orgasm–and auctions them off to her master…