American calculator - (6) different, 5 in boxes, M26 (2), M52, L180 (2),1776

Description

Here are 5 early American calculators, all vintage models.  I still need a few models in the collection, so if you have some spares to trade/sell I would be interested.  These are all spares from my collection and are boxed.  What is in the pictures is what you get.  I have taken the time to test each separately, and are as described. Be aware, when listed as working, some of these use pretty unusual input and operating sequences, so refer to the manuals. If you have a question about a specific item, I will do my best to answer it.  Included are the following:
M52 - working with operating brochure
M26 - working with operating brochure for SM20, but describes sequence needed to operate
M26 - non-working, has slightly different nameplate from other
1776 - working with instruction sheet
L180 - working no instructions
L180 - no box, this one has the flag logo in place of the L180, working, American label worn off
I am beginning to clear out my spares from the collection and will be listing groups of calculators, from time to time.  I have 100's of spares so keep watching as I will have many interesting items to come.  This is a chance to add to your collection at a very reasonable price for these vintage boxed items.
All will come boxed in a USPS flat rate box and will be shipped for free to you.
Please, no international bids as I have had bad luck with fragile electronics going overseas.  I stress NO INTERNATIONAL SHIPPING as in this day and age delivery also cannot be assured.
All these are being sold as-is with no returns, so bid accordingly.