1. 1965 Porsche 912:
- Fair condition: $15,600 - $21,800
- Good condition: $19,400 - $27,500
- Very good condition: $24,700 - $35,000
- Excellent condition: $31,700 - $44,800
2. 1966 Porsche 912:
- Fair condition: $16,800 - $23,600
- Good condition: $21,100 - $29,900
- Very good condition: $27,200 - $38,500
- Excellent condition: $34,900 - $49,300
3. 1967 Porsche 912:
- Fair condition: $18,100 - $25,400
- Good condition: $22,700 - $32,300
- Very good condition: $29,500 - $41,800
- Excellent condition: $37,800 - $53,900
4. 1968 Porsche 912:
- Fair condition: $19,400 - $27,200
- Good condition: $24,300 - $34,700
- Very good condition: $31,400 - $45,100
- Excellent condition: $40,300 - $57,600
5. 1969 Porsche 912:
- Fair condition: $20,700 - $29,000
- Good condition: $25,900 - $37,100
- Very good condition: $33,400 - $48,400
- Excellent condition: $42,800 - $61,300
Please note that these are just general estimates, and the actual value of a specific Porsche 912 can vary based on its condition, mileage, options, and market demand. It's advisable to consult with automotive valuation experts or refer to up-to-date KBB listings for the most accurate valuation of a particular Porsche 912.