Cornwall OPC record 563180 in the Marriages database:
Day Month 03-Sep
Year 1854
Parish Or Reg District Just in Penwith, St.
Groom Fn Richard
Groom Sn EDDY
Groom Age 24
Groom Residence Church Town
Groom Condition bachelor
Groom Rank Profession blacksmith
Groom Signed / Marked (S/M) S
Groom Father Name William EDDY
Groom Father Rank Profession miner
Bride Fn Mary
Bride Sn CHIRGWIN
Bride Age 29
Bride Residence Bosorne
Bride Condition spinster
Bride Signed / Marked (S/M) S
Bride Father Name William CHIRGWIN
Bride Father Rank Profession blacksmith
Banns / Licence (B/L) banns
Witness Fn1 William
Witness Sn1 Chirgwin
Witness Fn2 John
Witness Sn2 Eddy
Transcriber Margaret Owens
Age 29 conflicts with the baptism register entry which states she was born 13 Jul 1835. Baptism register also states William was a blacksmith of Church Town St Just, so almost certainly is the correct one. I suspect her age was actually 19 when married.