Small Belt Drive Lathe, Need Collets

I have a good working 19th century lathe that supposedly came from a clock manufacturing place. I would like to purchase additional collets; they are an uncommon size, 11mm shank. There is no indication of the maker of this lathe or the collets. I appreciate any information on a possible maker of the lathe, and any leads to the acquisition of additional collets.

I found a sheet with a list of watchmaking collets by dimension on the watchmaking forum for American Horological Society, or American watchmakers Society (I think)
Joe

I', 'bumping this up to the top' so some one can identify this lathe, which I think some of you folks might know.

Glue on faceplate with epoxy.
Bolt on ER16 collet chuck, 22£ == 30$.
(or adapt an ER11 and shrink-on faceplate for bolting, cut off straight shank).

Buy set of hi-precision import collets for 50-90€ (5 microns runout).
Done, for full range of sizes, from 1 mm up.

Hannu's suggestion is a good one for general use. ER's are cheap enough and available everywhere. The collapse allowance means you need a lot fewer of them to cover a given range.

Try to ID the collets you have to start. You can't solicit to buy if you can't identify. Then decide what you need for sizes. If you intend to use the lathe for watch/clock work, you should identify a type of collet that permits clutch/pot/step type collets.

If you only need a few, making small collets is not difficult.
If you really intend to put use the lathe routinely, perhaps re-grinding the spindle to a more common style would be an option. Or in a small lathe like that, keep the original and make a replacement.

Here is a paper on making an adaptor for common WW collets to fit in a larger spindle such as yours'

http://sherline.com/Wordpress/wp-content/uploads/2015/09/1160inst.pdf

Hardinge will make anything in work holding if you can pay the invoice.

https://www.shophardinge.com/categories.aspx?catid=126

See if anything on this list jumps out, see pages 41 - 45:

http://hardingeus.com/usr/pdf/collet/2348.pdf

For instance, 1B's have a barrel OD of 11.1mm. 2C's 11.43

If not, try using that format to describe your collet, and see if Hardinge will ID. They used to be fairly responsive. Not sure how things are these days since the auction.

smt