I think a dyna no serial is an island music company snare drum. it is not a rogers snare drum and the lugs have a 2" center to center hole placement. not 1+ 7/8ths like the rest. they also have the knobs with a grey dot on the top of them. there maybe other ways to tell them apart, but since I avoid them. I don't know what they are. almost forgot to answer your question. I think there is a good chance these cheap knock offs had no spring.

Mine is a USA dyna 1 7/8 screw centers. I think it is a 80 or 81.

There was a short time that they didn't have serial numbers

But we're USA marked. The rogers book talks about this but nothin

I can find mentions the spring.

it will be a long time for spring....

I'm gonna say no. I had a early 80's dyna and the muffler had a spring. Does it work ok with out it? I'm pretty sure I have extra spring if you need one.

Cam

Thanks rillow 64but what I'm talking

About is the spring on the tensioner that

Tensions the snare wires on the frame.

The correct answer is NO.

The no serial number USA badge is from 1980-81. Early XP8 drums were serial ranged in the D six digit 95xxxx into the 96xxxx range, 1979-beginning of 80, spaning a period of approx. 4-5 months. No serial badges beginning 80 into 81. The next series of badges were RD six digit 96xxxx, 97xxxx, 98xxxx to the end of 82. Beginning 83 to the end D series six digit beginning at D100000 thru to approx. D125xxx.

The spring on the snare tension screw was never eliminated.

Thanks Ploughman. I will now start trying

To find one. Al Drews music doesn't have

Them.