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LENSES—R. & J. BECK, 68, Cornhill, London. THE OPTICAL
PHOTOGRAPHIC ENLARGER.
A Magazine of Popular Science for the Lecture-room and Edited by J. HAY TAYLOR, the Domestic Civcle. econ on
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N PLATES.
Vol. 2—No. 30. NOVEMBER 2,1891. Double Number, Price 2d.
: 7
PERKEN, SON & RAYMENT, “socesse'cs"" LONDON. ‘OPTIMUS.’ QC 5 5 HOLBORN VIADUCT, a »
E ch Magic Lantern is efficient for exhibitions. The Lens gives crisp definition, being a superior Achromatic Photographic Combination
(large diameter back lens), with rack and pinion. [tis fitted to a telescopic lengthening tube, so gaining increased foca] accommodation. . The
Condenser is composed of two plano-convex lenses of 4 inches diameter. The refulgent lamp has 3 wicks, (or 4 wicks Ys. extra,) yielding a
brilliantly illuminated picture.-Each is complete in box.
d. THE MACIC LANTERN: ITS CONSTRUCTION AND USE, Contains complete Instructions, Cloth covers, PRICE GS
LANTERN PHOTOCRAPHS, 12s, per doz. PLAIN, 18s. Ud. per doz.
Post FREE.
oO Brass Sliding Tubes,! Stages, Sliding Tubes, 50s. \ 82s.
Brass Sliding ‘Tubes, Tron Body, {2 Panelled Door, Brass Caraocee 30s. : “OPTIMUS * ovat LANTERN, © ror ume-uicur. “OPTIMUS? tripe LANTERN. Panelled Mahogany Body, 4 doors and moulded foot, Achromatic
Photographic Front Lens, Compound Condensers Brass Stages and sliding “Vues Pe
DS’ LANTE
he Top Lantern may be used separately with Oil Lamp. Panelled Mahogany Body, G doors and moulded foot, Brass Stages £8 8 and Tubes, Acbromatic Front Lens, Compound Condensers ... £14 10
“MAGIC LANTERNS & SLIDES|e
WALTER TYLER’S ADDITIONAL PREMISES are now Completed, and the New Slide Library is one of the sights of London to those interested in Lantern work. It contains many thousands of Slides. The
| Best und Cheapest House for Hire or Purchase of Lanterns, Apparatus, P or Slides. Very large number of Second-hand Lanterns, Slides, and Apparatus which have been Purchased, Taken in Exchange or Lent on Hire, to he Sold ; great bargains. Large Book, costing hundreds of pounds to produce, containing 350) pages, with instructions for working al] kinds of _ Lanierns and Apparatus post free to any part of the world for 6 stamps. ) Gratis to purchasers ; or smaller Catalogue, post free, to all applicants.
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< i Ces alt . a ss: aay, | COLOURED. > ra Hey i > r YJapanned Metal Russian Iron Body Perforated Russian | Mahogany outside Body ae + 468.
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3) 48 to 50, Waterloo Road, A
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WALTER TYLER, Ss
SS LGNDON, S.E. Z
C, Wy RS = Telcphone—4348. Velegraphic—W savter Tyten, Loxpon.
DOUBLE NUMBER, PRICE 2d.