20 mm, 30's, construction details


I have a few questions for 20 mm ammo from a 30s.

Anyone seen a shells “HE” practice version - standard a shape of shell with a imitation of fuze in one element, but with a nose type as on the photo [with edges] (maybe Solothurn, Madsen, Hispano-Suiza, Oerlikon?):


Is any projectile 20 mm - 30 mm from the 30s have a tracer construction similar to that from the photo? The tracer sleeve is in one element with steel shell.

I found only one type with similar tracer sleeve: 1,1" postwar:

[photo/image 1,1" from I need help identifying this 1.10 caliber projectile and http://photobucket.com/gallery/user/darkwolf5084/media/bWVkaWFJZDoxNDcyNzA0NDE=/?ref= ]

Im looking for a scan/pdf/jpg version of this book: https://www.abebooks.co.uk/servlet/BookDetailsPL?bi=19933116827&searchurl=tn%3Dmunition%2Bmaschinenkanone%2Bsolothurn%2B5-100%26sortby%3D17&cm_sp=snippet

I will buy a scan, or exchange.