If you had 2 of them placed interlocking,you could have yin/yang drums!..

I didn't know that calves have gotten smaller! This a Deri drum. The muffler on top of the snare, below is from a Deri 16 x 18 floor tom. Deri and Trowa used similar dual purpose mufflers , sporting a single toggle knob that tripped on like a switch but also threaded in and out to adjust the degree of muffling. It's on this kidney drum,as well as the little heart shaped wing screws for the legs that Deri used . They appear to have opted for using the bass drum lugs on this drum. From the features in general, I would say the drum dates from the late 50's. Mr. Rimmel, one of the partners, in Deri, had a state of the art foundry ,so whipping the hoops up , was probably just a bit of fun. It might have been custom made for some orchestra or ensembles or even a composer that wanted extreme examples of musicality brandished at the audience-----Stockhausen for sure.

[QUOTE=Purdie Shuffle;209261]My best guess would be either a tone control or some kind of internal pitch-shifter maybe. It looks more like a push/pull knob than a tone control

It is a tom mount. Likely the drum was set up similar to a cocktail drum. The mount could have carried anything from a set of Bongos or timbales which would have extended the outfit's tonal range but a cymbal arm was possible too. Deri/Rimmel were a going concern----producing handmade drums up until about 1990. The Deri brand ended sometime about 1970. Like Trixon , they produced their fair share of offbeat drum designs. There was the Deri Dixie ( check out Diamonds thread on his kit) and the Rimmel Showman, which used the same bass drum as the Dixie but had 6 toms mounted up top ,instead of 4. Based on the date of mfg. of this drum , it likely had a Birch shell, with Euro Beech rerings----scarf lapped, not butted and patched as was the norm for German shells of the time. Hoops were rolled but so heavy , they seem cast. Lugs are cast aluminum.

My internet went out and messed around with paint, Whataya think? Stanton Moore Style...lol I love it!

or you could have a mount on the snare ,like the Trixon Speedfire snare and hang it off the Yin drum.( if it was a Yang drum, it would be B.D.P.?)

I think you would be the only kid on the block to have a kit like that!!

Cheers

Such a cool drum~! I love the oddball stuff like this. Those hoops are too cool and 1 off's I'm sure. I'd love to hear how it sounds.

I did mention what it was used in on post 5 of this thread. I haven't heard it though or know if there's even a recording. I'd like to hear it too. Probably custom made for that composer?

I remember seeing ads for that drum (in a long forgotten Australian drum magazine). I asked in a post (http://www.vintagedrumforum.com/showthread.php?t=21457) if anyone else remembers such a drum and everyone (including myself eventually) thought I was dreaming.

My aging memory has been vindicated!!!!!

So thanks for the post and the pictures. I'd love to know more if there is any more detail to be had.

Cheers to all

So a bit of detective work on Google tells me;

I (the composer Stockhausen) went

to a fair in 1960 in Frankfurt and I found one

made by Karl Rimmel called a "kidney drum."

It has a size of about, I would say, 31/2 feet long

but is kidney-shaped, and it stands on four

metal legs. It is built like a tom-tom but has a

switch for being half-muted or completely

muted. It has several in-between steps of muting

that are discontinuous.

The full text can be found out http://blogs.bgsu.edu/musicdms/files/2012/08/ressept85.04-471.pdf