The 109 was produced on many locations. Late war production took place in a great number of decentralized facilities which produced components. Below are some shots of 109 production facilities.

(Source: Die Deutsche Luftfahrt, Willy Messerschmitt)

(Source: AJ Press Monografie: Messerschmitt Me-109 Cz. 2)

(Source: AJ Press Monografie: Messerschmitt Me-109 Cz. 2)

(Source: AJ Press Monografie: Messerschmitt Me-109 Cz. 2)

(Source: AJ Press Monografie: Messerschmitt Me-109 Cz. 2)

(Source: AJ Press Monografie: Messerschmitt Me-109 Cz. 2)

(Source: Koku Fan Me-109 Special)

(Source: Koku Fan Me-109 Special)