Occupation, please

[Shona]

Can anyone make out the occupation of the younger Joseph Towriss on the 1901 census, please. I can read 'railway coy's', but not the final word.

http://interactive.ancestry.co.uk/7814/LINRG13_3091_3093-0177?pid=18044631&backurl=http%3a%2f%2fsearch.ancestry.co.uk%2f%2fcg i-bin%2fsse.dll%3findiv%3d1%26db%3duki1901%26gss%3da ngs-d%26new%3d1%26rank%3d1%26msT%3d1%26gsfn%3djoseph%2 6gsfn_x%3dNN%26gsln%3dtowriss%26gsln_x%3dNN%26MSAV %3d1%26cpxt%3d1%26cp%3d11%26catbucket%3drstp%26uid h%3dfpy%26pcat%3d35%26fh%3d1%26h%3d18044631%26reco ff%3d%26ml_rpos%3d2&treeid=&personid=&hintid=&usePUB=true

Thanks.

[JBee]

Roof sheeter? Seems the enumerator has added his interpretation of occupation.

[Merry]

Yes, I read the original word as "sheeter" too.

[kiterunner]

Sheeter? Apparently it can mean a roofer and the word written over it could possibly be Roof although I thought it said Proof at first.

[Shona]

Thanks for the suggestions - it does look like 'sheeter'.