15mm Seat post size????

[thebigorangecat]

Looking for some help on this one

I had this old leather seat that fit on my '84 Murray cruiser and the top of the seat post measured 15mm, bottom tapered out to 20mm (am used to the modern metric sizing).

Now I bought a new brooks and all their clamp sizes are 22.2mm or 7/8".

So my question is how to I get a 15mm clamp with a square center?

Only asking since nothing is coming up on my eBay or Google searches.

 

[socal_jack]

13/16" works out to a tad more than 20mm, 5/8" is a tad more than 15mm. Likely those are the dimensions you're looking for, both common sizes at one time.

Something like this except double rail, or get both and swap guts;
http://www.ebay.com/itm/NOS-Bicycle...856?pt=LH_DefaultDomain_0&hash=item4d061d0c98

 

[thebigorangecat]

Thanks, looks like this...........