These are a pair of Estes Gnomes, small little rockets that fly on 1/2 A 13mm motors.
Even though it's a pretty small motor, the rocket is also and it really scoots up there quickly, a hard one to keep an eye on.
Built 1-14-02
Diameter .54", Length 10.3", and Weight .4oz Streamer recovery.
We never recorded flight logs on these, sorry.