Projection Apparatus (1917)

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to with your comments.

We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

)--*+ Bausch & Lomb Optical Company Figure 9—Special Portable Model C Balopticon CGP in Case. NOTE—We recommend that an extra Mazda lamp be included in traveling outfits equipped with this form of illuminant to guard against breakage or burning out. Space for this extra bulb is provided in both types of carrying case. The 400-watt Mazda lamp with clear globe is $5.00 net (see “Accessories”). The above outfits are listed with the 10-inch focus lens, which is the one generally required. The 12 or 15-inch focus lens can be supplied at the same price. If one of these is preferred, substitute “12” or “15” for the numeral “10” in the above catalog numbers. 35