Can't identify (2) tripods.

I have two metal tripods.One,made in the USA has a pan/tilt head,locking pin and is stamped Masterhead.
The other is made in Germany,has a simple ball head & lock ring and is marked MEI.They can be extended about 5 ft. on spindly,non-braced legs.Is there a collectors group online or a web site that would help me to identify these beauties?


Thank You