Help! Trying to identify 'Made in Japan' teaset

Hi everyone, I am attempting to identify this teaset. There is a missing sugar bowl (all that remains is the lid!) that I would dearly love to replace, but I've drawn a complete blank when searching on the web. Given my knowledge of it's previous owner I would guess its age at around the 1950s. On each item there is a set of three roses and a small rose bud. On the reverse; only a small rose bud. No other distinguising marks except the gold leaf detail.