Working Models for Engineering Students. Slide Valve Models. Series Nos. 1 & No. 2. New Edition. 1920.

Bashed up box but still more or less intact - see photos. Approx 17.5cm x 13.5cm x 2cm

Box contains:

1) 8 numbered card models of engine slide valves - a bit grubby but the card is in good condition and all the sliders are fully operational. Slightly varying sizes but all more-or-less postcard size.

2)  small booklet with green paper cover, called Notes on Slide Valve Models, by T. Jones and T. G. Jones, 6th edition. January 1920. Good condition with no tears, creases, marks or foxing. Approx 15cm x 11.5cm.

3) folded 4-page list of engineering publications by Thomas Jones & T Gilbert Jones, with hand-written annotations showing new prices and stamped annotations showing out of print items. Going a bit brown but otherwise the paper is in good condition. Approx 28.5cm x 22cm


Overall weight 163g