Hi PD's & hullo vett
I have a Saito Y2DR engine [as below] so am interested in Saito steam products as a general subject
You appear to have two small capacity Saito lubricators + a steam throttle valve + a few tube unions + two 100ml bottles of steam oil
You have answered your own question....as finding detail of Saito steam engines on the WEB is crazy.........I have never seen such items advertised on any WEB site that offers Saito products

Depending on your location....try Google for a Saito importer

& ask them.......Derek