Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_71495 ( "Lot No." real, "Diagram" real, "Mark" text, "Builder" text, "Fleet numbers" text, "Notes" text )

### Question ###
Name the most lot number with notes of b4 bogies and diagram of 185

### Accurate SQL ###

SELECT MAX("Lot No.") FROM table_71495 WHERE "Notes" = 'b4 bogies' AND "Diagram" = '185'