This is a really neat circa 1915 Ainsworth Solar Transit.   Ainsworth had a unique approach to attaching a Saegmueller Solar unit to a transit.  Ainsworth would modify a Saegmueller solar unit to fit on a mining transit designed for a second scope and counterweight (like Berger used).  I’ve asked around and Ainsworth was apparently the only maker who took this approach.

Note that the counterweight loop is only a half loop.  I have no idea what that’s about - never seen that before.

This Ainsworth solar transit has an earlier style Saegmueller solar unit, which is interesting.   The Ainsworth manual shows later style a Saeg unit.  The counterweight on my unit also looks larger than what the manual shows.  I suspect that the purchaser of this Ainsworth might have already had a Saeg solar unit and had Ainsworth modify his Saeg unit to fit on the this Ainsworth transit.  Don’t know for sure of course - maybe Ainsworth had an old Saeg unit sitting on the shelf.

Either way, this is a really neat and very solar transit.

No box, but has a tripod (probably not original).

9.5 inches telescope. 2.5 inch compass needle. Serial number 2946. Missing one vernier glare guard. Compass hard to read - small 2.5 inch needle.

The levels contain liquids.

The aluminum guard for the vertical circle is cracked. I reattached it with some glue, and it is very hard to see. Ask for more photos if this is an issue.

Optics work on both scopes. No crosshairs on the big scope. The Saeg might have crosshairs – hard to tell.
Please see my Ainsworth Instrument Maker Webpage for more information about Ainsworth.