Red Monochrome Vase

[kardinalisimo]

Somehow I feel it is recent but want to double check.
Also few general questions.

The inside wall of the foot is oblique. Is that normal for old pieces?
The footrim is flat - was this a feature only on Imperial pieces?
The base is glazed with the same color. Was  this common only for specific periods? I think I've seen it on Yongzheng pieces but can't recall if in red.
Well controlled glaze with no overflowing on the base. That was only possibly during early Qing, right? And of course on the newer pieces with commercialized glazes.
Orange coloration from the bleeding oxide. On old pieces there should be always some buff color where the glaze meets the bisque, right?

Thanks

[peterp]

Yeah, the base says it all. Studying the foot rims of antiques may help. 

[kardinalisimo]

The base says it all:) Any details?
Thanks