Stuck translating owners engraving (Japanese)

[zerobuttons]

Could any of you with better Japanese skills than me translate this engraving? This is a Contax bought from Japan. I can translate 中国の長X but cannot get the last kanji. I hope some of you guys can help - I know we have some members who are currently in Japan, or have stayed there for long periods of time.

 

[jonmanjiro]

Looks like > 中国○長城

中国 > China
○ > not a character, just a circle I think, or possibly a partially/incorrectly engraved の
長城 > great wall

 

[zerobuttons]

Looks like > 中国○長城

中国 > China
○ > not a character, just a circle I think, or possibly a partially/incorrectly engraved の
長城 > great wall

Great - thank you, Jon. I would never have recognised that last kanji as being 城.