https://www.ebay.com/sch/i.html?_from=R40&_nkw=vintage+rotary+telephones&_sacat=0&rt=nc&LH_Sold=1&LH_Complete=1
Above are the rotary phones recently sold on ebay !!
Since your phone iis labeled with the Nippon Electric Co. LTD sticker that means it would date from 1983 or after !! Thats when the company started using the name,, Nippon Electric Co. LTD !! They did make a line of Art Deco telephones as in the 1930`s and that is what yours looks like even though it was made much later !! Value just depends on who wants a red one !! Would maybe sell between $40 and $60 but only the buying public can set values !! Its only worth what someone is willing to pay for it !!
From what I read, NEC was the Nippon Electric Company LTD until 1983 when the name was changed to NIC Corporation. So, This Telephone would be prior to 1983. I don’t think it is a reproduction. It is a true Vintage Telephone. It does test that it is made of Bakelite. Thank You