To guest Barry Boyce, your LG-1 guitar is a 1950. The first 4 digits indicate 1950 the next 2 digits are the sequence of that guitar in a rack of 40 guitars of that model. Guitars were made in lots of 40. The "Made in USA indicated that this guitar was intended for export. Starting in 1970 all Gibson guitars have, "Made in USA" on the back of the headstock. The tapered thickness headstock was discontinued in the mid 1950's. Your guitar will sell for 1 to 2 thousand depending on overall condition.

To guest Joseph, your LG-0 is probably 1964. I say "probably" because Gibson really made a mess out of serial numbers in the 1960's. The early LG-0's (1958-1961) bring a better price than the 1962 and newer ones. Yours is in the range of $700.00 to $1100.00 depending on condition and how bad someone wants a LG-0 with plastic bridge. A LG-0 with replaced bridge brings less from a collector standpoint but few collectors buy LG-0's.

As fluid as the market is these days my above quotes (in US dollars) could go up or down overnight.