Thanks to Geoff's question … I rememered Steffen Pahlow
His website has been updated since I last looked; and he now offers four iBooks
**LINK** http://www.s1p.de/2016e/s/b/be.html
If you are interested in Lorch lathes, and have an iOS device: These are amazing value.
Note: Don't judge them by the advertised 'page count' !!
… There is much more content than that simple number would suggest.
For the vintage that Geoff has bought-into, 'Book 1' [at a trifling £1.49] should suffice; but, inevitably, I've bought all four, and am delighted.
MichaelG.