<html> These repair pins look familiar to me Richard.  I sold a Kohler and Campbell piano to an old lady in 1975 and the whole treble bridge was equipped with the 24315C type of bridge pin imitations.  Until recently she was a regular customer with annual tunings at Christmas time.  Now, she is 93 years old, calls infrequently.  They work well in this piano.  The only time I had to re-secure one of these "gizmos" is about 2 years after delivery.  Since 1975 I tuned the piano 16 times without any problem except that one occasion. The bass bridge has regular pins. Hope this info. helps you a bit. George Takats   At 04:47 PM 9/8/01 +0200, you wrote: <blockquote type=cite class=cite cite><img src="cid:.0" width=300 height=230 alt="CWINDOWSTEMPnsmail53.jpg">  Hi Folks, I ran into these today on the nett, have never seen them before. Looks like a way of bypassing the use of bridge pins really. Anybody tried these ? -- Richard Brekne RPT, N.P.T.F. Bergen, Norway <a href="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</a>   </blockquote></html>