FA: COATED 38Ø Red Rollei filter and case - for the f2.8?

Here's a nice used, but like new COATED Rollei red filter in excellent
condition, in its leather case -- also Rollei.  It's marked 39Ø, which
I believe means 38mm barrel size, so perhaps it fits the f2.8
Rolleiflex?  You Rollei people will know. 

This is a beautiful filter with anti-glare coating for maximum
contrast, which I believe you can see in the picture above.  It's a
deep red color -- I would call it Wratten #25A -- which gives dramatic
skies in B/W. 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330018348636