There's a seller offering up this strainer as a P-338.

[Attachment: 14616] [Attachment: 14617] [Attachment: 14618]

While there's no doubt this is a valuable older strainer, it looks to me like a Pioneer strainer, as shown on Vintage Drum Guide.

[Attachment: 14620]

My understanding is that the P-338 sports a different shape at the bottom where the guts / wires go through, as shown in this picture:

[Attachment: 14622]

Thoughts?