Okay that collective noun is reserved for crows but its applicable to a group of piccolos as well. Here is the collection of Kevin Rietmann, piper, fluter, etc from the US.
Kevin has an excellent youtube channel of old recordings notably pipers:
"Time to chime in with my collection, largely American/French/German; none of these toneholes you could drop a nickel in.
Left to Right:
BOOSEY AND CO/MAKERS/LONDON/22854/LP "Guaranteed British Made" Plus its case at the bottom. "Lyre"?
D NOBLET/G LEBLANC SOOR/LA COUTURE
V. KOHLERT SONS/MAKERS/GRASLITZ/D./AUSTRIA====LP/D/1617
HF MEYER/HANNOVER/C on head and body, mit crown stamp, nach yah
(Huller, judging by markings) MADE IN GERMANY/Eb/LP
And 3 unstamped jobs, the first two pretty crappy players; the ivory head one is stamped "E/LP," and the head seems to work OK, but the body's tenon is missing a large section of wood.
The barrel on the Boosey is a modern plastic replacement. The skudge on the Koehlert's headjoint is crosshatchings a previous owner carved into the ivory, to prevent slippage. The little ferrule next to the Boosey's case fits onto the end of the Improved, bringing the bottom D down into tune.
Note the plates the key posts sit in on the Meyer, another indicator it's the real deal. Hard to play without colliding with its keys, though. The stamped ones are all nice players, don't quite have the Huller or Noblet working as of yet though. The metal-over-wood headjoint on that Cloos leaks as well, no matter how many times I bathe it in beeswax. Repairs here and there by pipemaker Brad Angus, who I've been badgering to make a keyed flute for years."
Special thanks to Kevin Rietmann