Ivory keytops and tails

[John Delacour]

At 18:33 +0000 12/11/07, Anne Acker wrote:

>I need to replace about a dozen nasty iodine stained plastic keytops 
>with ivory on an otherwise lovely ivory keyboard and have discovered 
>these keytops are a full 2 in. long vs. the usual 1 7/8 and the 
>keytails are a tad wider than the normal as well.   The piano in 
>question is an 1899 Collard & Collard.
>
>Would anybody out there have anything handy?

How thick are the heads at the front and the back?  Is it a normal 
keyboard or the special Collard & Collard style with round-fronted 
sharps and radiused heads?

JD