wrote:
I'm looking for used negative carriers for Beselar 4X5 enlarger. (for
6x4.5 negatives.)

I have looked at KEH, MidWest Exchange, and others with out much luck.

Any suggestions?

Thanks Alan Tippett

This may sound rather crude, but you could make your own out of thick
(not corrugated) cardboard.
I've used cardboard neg carriers myself for 6x6 on a similar Beselar 45
and it seems to be alright.
All the neg holder is, is two circles of card with a 57mm x 45mm cut out
of the middle.
Two strips of thinner card (slightly thicker than the film) could be
added to make "rails" for the film strip to sit in, so that you could
more easily slide it through to go from frame to frame.
Otherwise, there is a chance you could scratch up the emulsion pulling
the film strip through.