Vintage Guitar magazine lists the following guitars in it's top 25 valuable guitar list... see the full list here
1958-’59 Gibson Explorer
1936-’42 Martin D-45
1958-’60 Gibson Les Paul Standard
1930-’33 Martin OM-45
1958-’59 Gibson Flying V
Vintage Guitar magazine lists the following basses in it's top 25 valuable bass list... see the full list here
1960-’62 Fender Jazz Bass
1970s Zemaitis “Heart Hole” Bass
1963-’65 Gibson Thunderbird IV
1958-’60 Fender Precision Bass
1961-1964 Fender Bass VI