FYI : Below a "non posted" size comparison picture between the Kingsize flat top Bulk filler, Montblanc 149 en the streamline kingsize bulk filler.
Hope this helps !
]Is it possible to post a picture of the pen with a MB 149 next to it for comparison (with the cap off! since the Bulkfiller will be a non-posting pen)? I received an email re: price--- 1418 Euro.