US: 1 Cent "Lincoln - Wheat Ears Reverse" [solved]

Hi.
I have the following years of this coin. 1950 and 1951 without mintmark, and also 1956 and 1957 with mintmark "D". According to Numista catalog they should all be "with signature". But there is no signature on my coins. Am I lucky to have some very rare coins(I don't think so), or is it a fault in the catalogue?

I think it hightime that the coin page is altered (in big fat letters) we have like every week someone with 'where is the signature' (no offence to the thread starter).
There is no signature just an abreviated name DBV or something and for all but the first years it on the bottom of the bust.

Quote: "Idolenz"​I think it hightime that the coin page is altered (in big fat letters) we have like every week someone with 'where is the signature' (no offence to the thread starter).
​There is no signature just an abreviated name DBV or something and for all but the first years it on the bottom of the bust.

I submitted a modification request.

Details that don't vary within a year do not belong in the year lines.