Kaiser 4583 Compound Negative Carrier - Universal to 6x9cm with 4433 Anti Newton / Plain Glass Inserts.  

An excellent condition example of this universal masking negative carrier for the System-V series of enlargers.

Fits all System-V enlargers from 1994 onwards - "05" series -  e.g 6005 / 7005 /9005 Models

Suitable for all negative sizes up to 6x9cm, supplied with Anti Newton top glass and plain lower glass inserts fitted to the carrier. 

Excellent condition, supplied as shown in the photos.

Sells new for around £160 complete - £85 plus £75 for the glass inserts - so grab a bargain at close to half price.