Ray Subtracto-Adder
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'Figurator (1905) - This machine was also known under the name Ray and was manufactured and sold by the Ray Adding Machine Company... This machine was similar to the Lightning Calculator and its price was $25.00 for a seven-place device.'  Ernst Martin, "The Calculating Machines."

"I have seen some Ray Subtracto-Adder ads printed in 1917. Around 1920 the name of the device was changed to Figuraytor (Ernst Martin calls it erroneously Figurator)." Timo Leipala.

Photo is courtesy of: Andy Kaylor - Serial Number 5599

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