Gibson GA-5T Skylark Tremelo Guitar Combo Amp. This is a super cool old tube amp from the massive amplifier collection of the renowned Indigo Ranch Recording Studios in California. It is covered in its original tolex which is really great shape with the exception of two or three scuffed spots. The grill is in good condition as well with just a few loose spots but it doesn't carry the Gibson name badge like most of the amps of this era. There is a 9-inch unnamed speaker that is marked S-20001 and 137-7417. There are some super nice old tubes in this one. There are controls on the upper front of the amp for Loudness, Frequency/Tremelo On-Off, and Power On-Off. There are two inputs located on the left side of the plate which are both working. This amp has a super nice old Tremelo effect that has a super wide range of frequency in the effect. When we tested the amp here at the shop we thought it had a really dark, deep tone to it. This is a great candidate for a practice amp for the vintage tube Gibson lover and would also make a great candidate for a restore if you wanted to put the time in. Either way you will like this amp.