Thank you all for your replies!
Originally Posted by GBR
For what occasion pray?
Depends on when it would be appropriate to wear .
Originally Posted by RogerC
Actually, it looks like a mongrel. Houndstooth is a relatively informal pattern for a coat, and would not have been worn together with all other accessories, which are suited to a morning coat. This would either be charcoal or light grey, and in some cases might have silk detailing on the lapels. In any case, it would have peak lapels.
That's exactly why I found it so interesting: that everything else was suited to a morning coat but for the jacket. I was half expecting to hear that this outfit was a lesser known (but still correct) form of semi-formal morning dress, but from the replies, it appears to be below that level of formality somewhere in the contemporary lounge suit area.
Originally Posted by comrade
That's more or less a contemporary equivalent that the kind
of "get-up" that the European " leisure class" might have worn
around 1910 when making formal social calls during the day.
The same folks would don tuxedos or full dress for dinner.
So do you plan to play "dress-up" or are you a member of that part of
society who still routinely adheres to these sartorial conventions, e.g
the courts of exiled monarchs, etc?
Correct me if I'm wrong, but that picture looks to be a poorly fitting stresemann / stroller outfit (semi-formal morning wear). Note that the lounge coat he is wearing is very dark (likely black if not charcoal grey). My understanding is that semi-formal morning wear in general demands that shade of lounge coat. Though the rest of the details are in line with formal morning dress, the lounge coat style appears to lower the outfit to informal status; I think YRR92 put it best:
Originally Posted by YRR92
It's a dandish casual suit rig. Or a bad dandyish odd jacket rig.
Originally Posted by Andy57
In my opinion, there is nothing special about the jacket that makes me think "morning dress" or even "morning suit".
I agree completely about the lounge coat; the parts of the outfit that I find to relate to morning dress are the shirt, tie, and waistcoat. I'm not sure why you disagree about the shirt and tie, but I humbly point out these examples of morning dress from the wedding of the Prince of Wales and the now Duchess of Cornwall:
Thank you again for all your replies!