McALLISTER'S PORTABLE HOUSEHOLD MICROSCOPE:

c. 1867-?

There are two slightly different McAllister Household Microscopes in this collection. They are virtually identical except for the signatures. In the image shown to the left, 'A' is signed in script on the tube 'McAllister, New York' and also in block letters on the front of the sleeve as 'T.H. M^cAllister New-York'. The signature on the sleeve is not only in block letters, but appears to be stamped rather than engraved like the tube signature. (A similar microscope with only the block signature on the sleeve, without the engraved signature on the tube is also known). The signature on 'B' is found only in block letters on the eyepiece as 'T.H. M^cAllister New York'.