Picked up a Harwood Professional, didn't notice but it was an A key.  It is in ok shape, going to need standard tune up.  Probably paid too much for it but its something new for me.
Register is a top side, bell marked in circle harwood professional j.w.j.s.m.co under which is made in czechq-slovakia and what im guessing is the serial # 1368 or there abouts.  Don't see any other markings on the body other than  A LP, and barrel is marked with the makers mark in circle.  Wood is fairly light, doesn't seem to be stained too dark, and IMO the grain isn't too dense.  Has the feel and look more of a student instrument than a professional.  Bell is stuck right now but that will be taken care of and some of the rings are loose, also will be taken care of.  Came with a chipped MP which was dried out which was stuck as well.  It looks  like it was hanging in a window or something by the driedoutness of the MP rubber.  Minimal rust and discoloration of keywork so I'm guessing it is not too old.
Is this a stencil?  I am not sure.  Kind of interested if anyone has heard of them, quality of instrument, desirability etc. If anyone could give me a hand with basic info I would be most appreciative.

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575378759&campid=5338273189&customid=&icep_item=154397426255&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg&toolid=11111

Vintage e flat Penzel-Mueller clarinet. I haven’t played it in 20 years but it played beautifully when it was last played. Does not come with a ligature.

Here is another, pretty extraordinary find;  a LP refer for under 150 bucks that can be put back into playing condition.  I believe the build date to be early 1920s, due to relatively advanced Albert keywork and LP:  Fairly prided, but who made it?
https://www.ebay.com/itm/Eb-Low-Pitch-Wood-Clarinet-13-Keys-4-Rings-For-Restoration-Solid-Case/393089298930?_trkparms=aid%3D1110011%26algo%3DHOMESPLICE.DISCLISTINGS%26ao%3D1%26asc%3D20191002092920%26meid%3Dbf0e5ebc2ee74ab4876e1ec0661f99cb%26pid%3D101096%26rk%3D2%26rkt%3D12%26sd%3D133692486132%26itm%3D393089298930%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3Ddefault&_trksid=p2332490.c101096.m3021

I certainly do.  I get a big kick out of studying the many different, evolving techniques for the different systems.  I admire simple flawless mechanics.  It is my oponion that we are ridong the backside of the curve of greatness in mechanical innovation, and because mechanical study and design was such a large part of my life in so many capacities, and for so long, I enjoy celebrating bygone efforts.  Keep 'em coming!

Nice, wonderful instruments.  I saw a gorgeous Pedler up for auction the other day and thought of you guys educating me on them on here.  I wouldn't have thought too much about them in the past, so there's a problem... . The Selmer mouthpiece is slightly different than mine- looks very well played!